In 1941 the British produced 20k military aircraft to Germany's 11.7k and Japan's 5k, yet in 1944 Britain only made 26.4k (a measly increase of 0.75% from 1943) whereas Germany produced 39.8k and Japan produced 28.1k, was it because of the American sleeping giant and changes in Britain's...
The Germans did have some interesting projects from the Emergency Fighter Program, but which would have served them the best if they had enough resources or time to get them in the air?
The 229 was going to be powered by a Jumo 004 engine (like the 262) which might not have been the best choice, whereas the E.583 and the P 215 were going to be powered by the superior Heinkel HeS 011 and the P.13a by a coal-powered ramjet IIRC, I know the Germans were still going to lose the war...
Aircraft like the Folland Gnat did do well in places like India, and there are other light fighter candidates from the 1950s like the F-5, Draken, Mirage III and of course the Mig-21